Magnetotactic bacterial abundance in pelagic marine environments is limited by organic carbon flux and availability of dissolved iron
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Roberts, Andrew; Florindo, Fabio; Villa, Giuliana; Chang, Liao; Jovane, Luigi; Bohaty, S; Larrasoaña, Juan C.; Heslop, David; Fitz Gerald, John
Description
Magnetotactic bacteria intracellularly biomineralize magnetite of an ideal grain size for recording palaeomagnetic signals. However, bacterial magnetite has only been reported in a few pre-Quaternary records because progressive burial into anoxic diagenetic environments causes its dissolution. Deep-sea carbonate sequences provide optimal environments for preserving bacterial magnetite due to low rates of organic carbon burial and expanded pore-water redox zonations. Such sequences often do not...[Show more]
Collections | ANU Research Publications |
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Date published: | 2011 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/51485 |
Source: | Earth and Planetary Science Letters |
DOI: | 10.1016/j.epsl.2011.08.011 |
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01_Roberts_Magnetotactic_bacterial_2011.pdf | 2.24 MB | Adobe PDF | Request a copy |
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